I see this post is older but I'm in here looking for advice on buying a new iron so might as well comment!

Yes, I use a serger often and for many things. I finish all fabric edges for garments, sew the seams on stretch, use it for decorative stuff, etc. Mine was not expensive, I purchased it second hand and have had it over 15 years. It's a MyLock 134D Janome. When not in use or for transport I store it in it's original box with styrofoam inserts and plastic bag to keep dust out. I clean and oil it regularly and have it serviced as often as I feel it needs. I really love having one, it's worth it for me .

My husband found me a vintage serger a few weeks ago and I am still learning with it. I have made some napkins from flannel, wash cloths with cat fabric on one side so we know those cloths are for the cat's bath time...lol It was scary to think about threading the machine, but once I did it a couple times, it wasn't hard at all.